.AnnouncementBox{
    height: 0.57rem;
    width: 100%;
    background: rgba(0,0,0,.8);
    position: fixed;
    top: 0;
    z-index: 1000;
    .left{
        display: flex;
        align-items: center;
    }
    .right{
        display: flex;
        flex-direction: row;
        justify-content: flex-end;
        .downBtn{
            background: #46A1FC;
            color: #fff;
            width: 0.8rem;
            height: 0.3rem;
            line-height: 0.3rem;
            border-radius: 0.05rem;
            text-align: center;
            margin-right: 0.1rem;
        }
    }
}